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Temporal quantization of spatial information using directional clustering for multichannel audio coding

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dc.contributor.author Shigeki Miyabe en
dc.contributor.author Keisuke Masatoki en
dc.contributor.author Hiroshi Saruwatari en
dc.contributor.author Kiyohiro Shikano en
dc.contributor.author Toshiyuki Nomura en
dc.date.accessioned 2012-08-22T07:59:02Z en
dc.date.available 2012-08-22T07:59:02Z en
dc.date.issued 2009-10 en
dc.identifier.isbn 9781424436781 en
dc.identifier.uri http://hdl.handle.net/10061/8277 en
dc.description WASPAA2009: IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, October 10-15, 2009, New Paltz, NewYork, USA, en
dc.description.abstract Binaural cue coding, which is a representing low bit-rate coding of multichannel audio, generates large distortion when the audio data have complex spatial image, such as symphony. Such distortion caused by the low frequency resolution of spatial information because BCC quantizes the parameters of localization. In this paper we propose a new coding framework by quantizing the spatial information temporally. The single-channel sum signal is panned to the multiple channels by selecting the prototypes of the spatial filter. Optimization of the prototypes with minimum coding error is given by a k-means-like clustering of the angles whose centroids are given by the first principal components of the covariances in the classes. The efficiency of the proposed coding with high quality is verified both in the objective and subjective evaluations. en
dc.language.iso en en
dc.publisher IEEE en
dc.rights Copyright 2009 IEEE en
dc.subject Multi-channel audio coding en
dc.subject binaural cue coding en
dc.subject k-means clustering en
dc.subject vector quantization en
dc.title Temporal quantization of spatial information using directional clustering for multichannel audio coding en
dc.type.nii Conference Paper en
dc.textversion Publisher en
dc.identifier.spage 261 en
dc.identifier.epage 264 en
dc.relation.doi 10.1109/ASPAA.2009.5346519 en


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